Insulator.



operating witha mechanism connected to the minuend' indicator, the gear =78 cooperating with a mechanism connected to the subtra hend indicator and the gear 73. cooperating with a mechanism connected to the remainder indicator, each in mesh with the racks 43 Fig. {against the horizontal pins 68,

Fig.2, so that the bars 25 Fig- 2 Orresponding with'the oolumns of figures depressedon the keys are free'to move] The crank-54 is drawn forward and the bars Fig. 2 free. to more aredrawn forward by' reason of their connection to the crank shaft 55 Fig. 2 by means of the rods 56 connected to the coil'springs 57 Fig. 20 which in turn are connected to the rods 26. Fig. as at 89 F ig. 2. The bars 26. Fig. 2 freed to move, als'above stated, will be broughtforward until they are stopped by the pertions 39 Fig. 2 coming in contact with the pins 29 Fig. 2 which. areso arranged and connected up with the disks d8 Fig. 2, that the figures on the same will be registered directly underneath the openings 52 in the top of the casing 25 Fig. 5.

With the'moying forward of the bars 26 and racks 27, the gear mechanism shown in Figs. 6 and 7 rotates as follows. The gears 7 0 and .71 secured to the shaft 7 2 rotate forward with the bars 26 and racks 27 on the minuend side and the gears 78 rotate for ward with the bars 26 and racks27 on the subtrahend side, and so long as both these sets of gears rotate together no other gears rotate, excepting that the pinion gears 76 attached to the walls o f the gears 78 rotate .around the gears 74. When the forward o"inovein ent of the bars 26 and the racks 27 on the subtrahend side are stopped .by the parts 39 Fig. 2 of the depressed keys in the subtrahend sidecoming in contact with the rods29 Fig. 2 on the bars 26, the gears '15; Z stop rotating and the gears 70 -F1'g. 7 keep on rotating until the higher numbers in theminuend side are reached. Just to theextent that the minuend. ears are rotated forward after the subtra lend gears are stopped, the remainder gears 73 Fig. 7 rotate backward, this backward movement being efi'ected by'the gears 71 Fig. 6 in mesh with the pinion gears '56 Fig. 6 rotating the pinion gears '76 forward and thepini'on gears 7 6 being in mesh or. the

opposite side with the gears 74 Fig. 7 which rotate the gears "('4 F ig.- 7 backward and these gears being secured to the same tubular-shafts 75 with the gears 73 Fig. 7 rotate the gears 73 Fig. 7 backward carrying the racks 27 RFig. 'Z, backward. taking the bars 82 Fig. 2. with them. movement hasv the effect of registering the remainder figures on the disks 81 Fig. 2 directly underneath the openings 86 Fig. 5 inthe top of the casing 25-Fig. 5,. Thus This backward there exists underneath the openings on the top of the casing 25 ,Figi 5 atthe left the figures in therninaen'd columns, at thecenter the figures. in the remainder columns and at the right the. figures in the subtrahen'd columns. Inasmuch as it often happens that in the lower columns of the-subtrahend' figures are oia higher denomination than in the minuend columns directly in alinement with them provision is made for the borrowing or transferring process from the figure in the next higher column as follows: Attached to the sides of the bars 26 and horizontal therewith on the subtrahend side S Fig. 2 except as to the one corresponding .with unit columns, are plates 90 2, the. smne being secured by lnnges 91 Fig. 9, lugs 92 Fig. 11 attached-lo the racks 2'? Fig. 11

Attached; to the tubular shafts 75. Fig. 11.

(being the same shafts shown in Figs. 6 and 7) are fin'gers 94'? Fig. 11 so adjusted thereto. as to have the eflecthereihafter stated.

The locking engagement of the lug. 92 and projections 93 Fig. 11 is what holds the bars 26 in relative adjustment with their respectiyeracks 27 Fig. 11. When the figure in the subtrahend is of a. higher denomination than theories in the ininuend directly above it, it will be seen that the'subtrahend gear '(8 Fig. 7 will be rotated farther than the gear 70 Fig. 7 on the corresponding minuendside. This of course rotates the rod 82 Fig. 7 forward to give the correct number-on its relative disk 8.1 Fig. 2 under the openings 82 Fig. 2, to the full effect as iften had been borrowed from the column ahead in the rninuend the result being shown on the bend of the disksSl Fig. 2, but it leaves the 'ten in the next. column above in the remainder unless taken out. This teen is taken out in the following manner: The finger on the tubular shaft is r0- tated upwardly bythe forward movement of the rack'27 R against the plate 9.0, tipping the same upwardly and releasing the lug 92 from the projection 93 on the'rack of the next higher column of the subtrahend thereby breaking the longitudinal locking engagement of 'tl1e'bar26 with its rack 27- Fig. -11; The bars 26 Fig. 2 have in their bottoms slots, 9,4; Fig. 2, through which I U11 TED-sm es PATENT oFFIcn.

JOHN E. YZBICKNELL, or FINDLAY, OHIO, nssrenon' TO THE rINn aY ELnc'riuc PORCELAIN COMPANY, OF FINDLAY, OHIO, A CORPORATION OF OHIO.

' INSULATOR.

To all whom, it may concern:

Be it known that I, JOHN E. BICKNELL, a

' citizen of the United States, and a resident of Findlay, in the county of Hancock and State of Ohio, have invented a certain new "and useful'Insulator; and I do hereby dedrawings,' and to the figures of reference;

clare the following to be a full, clear, and

exact description of the inventiom 'such as will enable others skilled in the art 'to which it appertains' to make and use the same, reference being had to the accompanying cap fitted to a base, the parts not being interchangeable, while the other class comprises duplicate-interchangeable parts. The

use of the first class requires workmen, when installing, to have an equal number of separated tops and bottoms, and the manufacturer when shipping isrequired to count out an equal number of tops and bottoms and separately pack them, adding expense as well as. oftentimes confusion, especially when some of'either parts become lost or broken. To overcome this disadvantage, several insulators of the second class have been placed on the market, but in all cases, so far as I am aware, it has been necessary to fit the top and bottom pieces together with the wire-receiving grooves of each or at least that of the bottom piece, in perfect alinement with the wire the pieces are ilk tended to grip. As it is quite often neces- I -B thereto, and are united and; clamped tosa-ry toinstall insulators in elevated positions, on ceilings and in places where workmenhave a limitedrange of action, difiiculty is experienced in getting the knobs or pieces properly attached, and this difii= 'culty is augmented by the necessity of 'bringing the twopieces of the insulator,.

or at least the inner one thereof, into exact position for the, groove or grooves therein to receivethe wire.

The object of my invention is the provisionof an improved insulator of the character described, the parts of which are alike Specification of Iietters Patent.

relates to insulators for drawings, in which,--

' sulat-or parts.

Patented May 6, mi e.

Application filed October so, 1911. Serial No. 657,540.

and interchangeable, and at; the same time self-centering, so that when. centered the top piece will firmly hold. and gripthe wire independently of the position in which it may be placed on the bottom piece, thus enhancing the practicability and commercial value thereof, and obviating the disadvantages and objections incident to the insulators heretofore used. 5

A further object of invention is the provision of an insulator, which will firmly clamp a wire without 1n ury to the -1I1$lllation covering thereof,- and is capable of being cheaply made and 'easily and quickly installed, and which also capable of hav-' ing any desired number of the parts there-I oi built one upon another forthe purpose of. firmly holding any number of cross-over wires at any desired angle of crossing, thus obviating the use ofjthe special cross-over pieces customarily used and saving the addt ed expense incident-t0 their use.

The invention is fully described the following specification, and while, in its broader aspect it is capable of embodiment in numerous forms, a preferred embodiment.

thereof is illustrated .in the accompanying";

Figure 1 is a side elevation of a three part nsulator embodying my lnventlon, with two.

Fig. 3 is an outer end view of. Fig. 2; and

Figs. 4: and 5 are bottom and top perspec-' tive views, respectively,'of one of the in- "lhe insulator comprising my invention is composed of two or more duplicate parts or sections A. which are built orplaced one 'upoi'ianother in proper number to clampvone or a plurality of crossing or parallel wires gcther to any-suitable support G by ascrew I) The parts A of the insulator are of porcelain, glass or other suitable insulating ma:

terial. and while they maybe of any suitable 'shape in cross-section arepreferably round;v

as shown-and arcof suitable length to meet f the underwriters requirements for the spacing of wires relative to thejadlacent support and to each other when more than a single wire are carried by a. single 'ins'u lator. Each of the parts A is provided through its longitudinal center with a hole and means for changing the relative longitem of bars paralleling the said sets of bars racks attached thereto mounted on gears, the gears adapted to rotate independently of each other, the said bars adapted for longitudinal movement along with the racks over said gears, the length of such movements being gaged by locking vmeans effected by stops in the key bars engaging stops on the paralleling bars, a third system of bars paralleling the said sets of bars across the. machine carrying racks mounted on gears,

t-udinal positions of each bar with its corresponding racln 3. In a calculating machine, the combination of a plurality of pairs of bars, paralleling each other across the machine and having racks attached thereto mounted on gears, the gears adapted to rotate independently of each other, the said bars adapted for longitudinal movement along with the racks over said gears, the length of such movementsbeing gaged by locking means efiected by stops'in the key bars engaging stops on the paralleling bars, a third system of bars paralleling the said sets of bars across the machine carrying racks mounted on' gears, and means for changing the rela-' tive longitudinal positions of each bar with its corresponding racktogether with means for retaining said bars in relative neutral.

positions to register 0 in each the mihuend,

subtrahend and remainder systems on the numbered spaces of the registering disks, means for releasing the same and means for changing the relative longitudinal positions of. each of the bars, and means for returning all bars to relative neutral positions.

at. In a calculating machine, the eembisnation of a plurality of pairs of bars, paralleling each other across the machine and having racks attached thereto mounted on gears, the gears adapted to rotate independently of-each other, the said'bars adapted for longitudinal movement along withthe racks over'said gears, the length-of such movements being gaged by locking means efiected by stops on the key barsengaging stops onthe paralleling bars, a third sysacross the machine carrying racks mountedon gears, one side of said firstnientioned bars together with its accompanying gears representing the minuend in a problem in subtraction, the other SldB thereof together with its accompanying gears representing the l thereof and egigaeratingl hea ers,

into numbered registering spaces, such.

wheels carrying gears meshing with racks attached to the first above mentioned sets of bars in such a manner that with the movements of the bars in registering the minuend 1 and subtrahendsuoh wheels register before openings in thetop or" the casing, duplicatesof the minuend and subtrahend of the first problem in subtraction worked in a given series and adds to the same the amount of each succeeding minuendandsubt-rahend and registers the same as aforesaid.

5., In a calculating mach1ne, the combination of a plurality of pairs of bars, paralleling each other across the machine and having racks attached thereto mounted on gears, together with a third system of bars, paralleling the said sets of bars across the machine, carrying racks mounted on gears, one side of said sets of gears representing the minue'nd side of the machine mechanism and cooperating therewith, the other side thereof representing the subtrahend side therewith and the third set repr nting t e remainder mech anism thereof'and cotjperating therewith, all

(if the 'gear'sso connected that the minuend and subtralrend gears may rotate'together in the same direction while the remainder gearsstand still, and when the subtrahend gear ceases to rotate and the minuend gears co'ntinue to rotate, that the remainder gears will rotate in an opposite direction to the full thesubtrahend gears cease to rotate. I,

, In testimony whereof I afiix my signature 'in presence of two Witnesses.

JOHN. OTTO ALMEN.

five dents Washinzton, I). 0."

extent that the minuend gears rotate afiter A each; byaddressing' the Commissioner of Eatente. 

